Linseed-cake stripper



(No Model.)

IKO. SWANNBLL.

LINSBBD CAKE STRIPPBR l N0.476,327. PatentedJune 7,1892.

FH if pulley C and belt C.

Ilivrrnn Staffs-s ,ATET FFICE,

FREDERICK O. SVANNELL, OF CHICAGO, ILLINOIS.

LINSEED-CAKE STRIPPER.

SPECFICATION forming part of Letters Patent No. 476,327', dated J une'7, 1892.

Application filed May 18, 1891. Serial No. 393|091. (No model.)

To all whom, t may concern.:

Be it known that I, FREDERICK O. SWAN- NELL, a citizen of the UnitedStates, residing in Chicago, in the county of Cook and State ofIllinois, have invented a new and useful Improvement in Linseed-CakeStrippers, of which the following is a specification. w

In the manufacture of linseed-oil the linseed-meal, when the cake comesfrom the press after the oil has been extracted, is covered by a stripor band of canvas orcloth, which adheres with some tenacity to the cake,and which it is necessary to strip or remove.

Previous to my invention the most effective method of doing this was `bymeans of a machine which consisted of a revolving shaft placed over atable hung between bearings. One end of the cloth was wrapped aroundthis shaft and the revolution of the shaft wound the canvas or clothupon the shaft, the cake traveling under and over the shaft as it wasstripped until the cloth was entirely removed. The revolution of theshaft was then reversed by pulling on the cloth and the latter removed.The operation of such a machine was, hcwever, necessarily slow, andespecially hard upon the workmen who attended it, as the pulling off ofthe heavy duck canvas was very severe work, and made the lingers andknuckles sore by abrasion upon the clot-h.

The present invention is an improvement upon this rude machine; auditconsists in constructing the winding-shaft to overhang its bearings,whereby the wound-up cloth may be pulled off the shaft endwise insteadof by unwinding.

It also consists in the peculiar construction of the shaft of such formthat the wound cloth may be readily pulled off.

In the accompanying drawings, which form a part of this specification,and in which similar letters of reference indicate like parts, Figure 1is a front view of the machine; Fig. 2, an end View of the same; Fig. 3,a perspective view of the overhanging portion of the Winding-shaft; andFigs. 4t and 5 are illustrations of the operation of stripping the cake.

In said drawings, A represents the bed or table of the machine. B is theoverhung shaft, capable of being revolved in the direction indicated bythe arrow by suitable means, as A belt-shifter'or a clutch-lever ortreadle D offers a means of operating a belt-shifter or clutch ofordinary construction, and not shown inthe drawings, by lneans of whichthe revolution of the shaft may be stopped or started. As no greatamount of power is required in the act of stripping, the belt C shouldbe comparatively loose to avoid injury to the workman if his hand orclothing be accidentally caught between the shaft and the winding canvasor cloth.

E is the linseed-cake, and F the canvas or cloth to be strippedtherefrom. The shaftB in the example illustrated is made with fourcorners l), proj ecting in such manner as to form grooves, hollows, ordepressions b', so that when the canvas is wound upon the shaft thecontact between the shaft and canvas will be at several points and notcontinuous, and, moreover, so that by pressing the canvas into thehollows between the corners or proj ections it may, if tight,be readilyloosened and slipped off. I nd that the four-cornered shaft withprojecting corners and hollowed interspaces works with entiresatisfaction.; but of course it will be understood that the shaft may bemade of different cross-section and the same results achieved-as, forexample, the same results will follow if a threecornered shaft wereused, or any other crosssection which would furnish the hollowedinterspaces and projections to permit the cloth to be loosenedsuificiently to pull the same readily from the shaft.

The operation of the machine is as follows: The linseed-cake, with theenveloping cloth attached, is laid upon the table under the overhangingshaft. The loose or overlapping end of the latter (marked F in Fig. l)is then thrown over the shaft, and the latter is started to revolve,winding the cloth around the shaft and lifting the cake up in thisoperation, as shown in Fig. ,and at the same time causing the cake totravel ahead in the direction of the arrow in said figure until the endis reached, when the further stripping will cause the cake to pass overthe shaft traveling in the opposite direction, as shown in Fig. 5, untilthe other end is reached, and then under the shaft in the firstdirection until the end of the cloth is reached and the cake entirelystripped and the cloth all lwound upon the shaft. The ma- ICO chine maybe now stopped and the cloth slipped off endwise in the direction of theshaft. If the cloth should adhere to the shaft, 1t maybe easily andquickly loosened by cornpressing it into the hollows, When it will slipoff easily.

By aid of this machine I nd that one man can easily do the work of t-Wousing the older appliances.

claiml. In a machine for stripping the cloth envelope from linseed-cake,the combination, with a table along which the cake travels and by whichit is supported at one or the other of its ends during the strippingoperation, of an ovcrhung Winding-shaft, around the free end of whichthe cloth envelope is adapted to be wound and from which the coil ofcloth FREDERICK O. SWANNELL.

Witnesses:

II. M. MUNDAY, JOHN W. MUNDAY.

